The Laws That Built Wall Street: 90 Years of Rules Every Investor Should Know

Historic Wall Street skyline blending into modern digital trading screens, symbolizing 90 years of market evolution and investor protection.

The Crash That Changed Everything.
When the stock market collapsed in 1929, nearly half of American banks failed, 15 million people lost their jobs, and faith in capitalism itself began to crumble. There were no disclosure requirements, no investor protections, and virtually no oversight. Hype rather than facts often backed stock offerings, and the concept of a "fiduciary" standard didn't yet exist.

The crisis didn't just wipe out wealth; it wiped out trust.

Franklin D. Roosevelt's administration understood that restoring confidence meant rebuilding the rules of the game. Between 1933 and 1940, Congress passed a series of landmark laws that redefined what it meant to be an investor in America. Those same laws and the principles behind them still govern how your portfolio operates today.

From mutual funds to equity compensation, from IPOs to crypto assets, nearly every financial product you interact with can trace its lineage back to those reforms born out of the Great Depression.

The Birth of Market Regulation (1933–1940)

The Securities Act of 1933: "Truth in Securities"

The first significant reform was revolutionary in its simplicity: make companies tell the truth. The Securities Act of 1933 required that any company selling securities to the public provide accurate, complete information about its business, management, and finances. It outlawed misrepresentation and fraud in new stock offerings, the foundation of modern disclosure.

The Securities Exchange Act of 1934: Birth of the SEC

Next came the creation of a permanent watchdog. The 1934 Act established the Securities and Exchange Commission (SEC), tasked with enforcing federal securities laws, regulating exchanges, and overseeing brokerage firms and dealers. For the first time, there was a federal referee on Wall Street.

The Investment Company Act and the Investment Advisers Act of 1940: Defining the Fiduciary

By 1940, lawmakers recognized that pooled investment vehicles and professional advice were growing industries in need of rules.

  • The Investment Company Act of 1940 regulated mutual funds, requiring diversification, transparency, and limits on leverage.
  • The Investment Advisers Act of 1940 established the fiduciary standard, which requires advisers to act in their clients' best interests.

That single principle continues to define the difference between Registered Investment Advisers (RIAs) and brokers to this day.

At VIP Wealth Advisors, that same act is why our flat-fee fiduciary model exists. It's the law that separates advice from sales, and it remains one of the most important distinctions in all of financial planning.

The Era of Expansion and Deregulation (1970s–1990s)

As markets modernized, the rules evolved again.

1970: The Investment Company Amendments Act

Created the SIPC (Securities Investor Protection Corporation), ensuring that investors' assets would be protected if a brokerage failed - a key safeguard during turbulent markets.

1974: ERISA - Protecting Retirement Assets

The Employee Retirement Income Security Act (ERISA) introduced rules for private pension plans and later for 401(k)s, establishing fiduciary duties for plan sponsors and investment managers. This was the first time federal law explicitly required retirement fiduciaries to act "solely in the interest of participants and beneficiaries."

1975: The SEC Abolishes Fixed Commissions

This ushered in the era of competition and eventually led to the development of the modern discount brokerage model. It was a turning point for accessibility and innovation, setting the stage for today's retail investor revolution.

1980s–1990s: Deregulation and Globalization

The rise of derivatives, the repeal of Glass-Steagall barriers, and the Gramm-Leach-Bliley Act of 1999 enabled commercial banks, investment banks, and insurers to merge, resulting in the creation of financial behemoths like Citigroup. The globalization of markets introduced new opportunities but also new systemic risks.

This era of expansion pushed capital markets to new heights, but also laid the groundwork for the excesses that would lead to the next major crisis.

Oversight and Accountability (2000–2010)

Every generation of investors learns the same lesson: excess leads to reform.

2002: Sarbanes–Oxley Act (SOX)

After the accounting scandals at Enron and WorldCom, Congress tightened corporate governance. CEOs and CFOs were now personally responsible for certifying the accuracy of financial statements. The Act also established the Public Company Accounting Oversight Board (PCAOB) to regulate auditors, thereby bringing greater integrity to financial reporting.

2010: Dodd–Frank Wall Street Reform and Consumer Protection Act

The 2008 global financial crisis triggered the most comprehensive overhaul since the Great Depression of the 1930s. The Dodd–Frank Act introduced systemic risk oversight, the "Volcker Rule" trading restrictions, and the Consumer Financial Protection Bureau (CFPB). Hedge funds, derivatives, and credit default swaps were brought under greater scrutiny.

Dodd–Frank also enhanced fiduciary responsibilities for advisors handling retirement accounts, an early precursor to today's Regulation Best Interest (Reg BI).

The Modern Era (2010–2025): Complexity and Innovation

Technology and innovation have pushed the regulatory frontier further than ever imagined in the 1930s.

2012: The JOBS Act

Designed to spur small business growth, the Jumpstart Our Business Startups (JOBS) Act loosened restrictions on private capital raising and crowdfunding. It opened the door for more pre-IPO investing, but also blurred the line between public and private market oversight.

2019: Regulation Best Interest (Reg BI)

Implemented by the SEC to address confusion between brokers and fiduciaries, Reg BI raised the bar for broker-dealer conduct but still fell short of the fiduciary standard under the Investment Advisers Act. At VIP Wealth Advisors, our approach extends far beyond Reg BI - we adhere to the stricter fiduciary duty under the 1940 Act, rather than settling for a "best interest" interpretation that still allows conflicts.

2020s: Crypto, Private Markets, and AI

The SEC now grapples with tokenization, decentralized finance, and digital asset custody. Meanwhile, private funds, once reserved for institutional investors, are experiencing record inflows from accredited investors.

The 2023 Private Fund Adviser Rules imposed new transparency and audit requirements, echoing the spirit of the 1930s disclosure acts for a new generation of assets.

Even artificial intelligence is being drawn into the regulatory crosshairs, as the SEC examines how algorithms impact trading, investment recommendations, and client suitability.

Why This Still Matters to Investors Today

Key Principles That Still Drive Outcomes

At first glance, these acts may seem like historical footnotes. In reality, they define every aspect of how wealth is built, managed, and protected.

Transparency = Trust. The 1933 and 1934 Acts ensure that when you invest in a public company, the financials you read are complete and verified. This framework underpins all modern markets, from IPOs to ETFs.

Fiduciary Duty = Alignment. The 1940 Advisers Act is what requires RIAs, like VIP Wealth Advisors, to put clients' interests first; there are no commissions, no kickbacks, and no product sales bias. This is why we built our firm on a flat-fee model that removes the conflicts embedded in traditional AUM-based or broker-dealer compensation structures.

Regulation = Confidence. Each new era of reform, from Sarbanes–Oxley to Dodd–Frank, has rebuilt trust after a crisis. Without these laws, the capital markets that fuel innovation, entrepreneurship, and retirement wealth wouldn't function.

Adaptation = Opportunity. As the crypto, AI, and private markets evolve, the spirit of these laws - disclosure, accountability, and fiduciary care - remains the Guiding Principle for savvy investors and advisors alike.

Planning Playbook: Lessons from 90 Years of Market Rules

  • Understand What's Under the Hood. Every investment vehicle, from your 401(k) to your restricted stock units, exists under a specific regulatory regime. Knowing which one governs it can reveal key insights about liquidity, tax treatment, and risk.
  • Ask Who's Regulated and Who Isn't. The difference between an RIA and a broker isn't semantics; it's the difference between a fiduciary and a salesperson. Always know whose interests come first.
  • Don't Confuse Innovation with Safety. Every new asset class, from mortgage-backed securities to crypto, has gone through the same cycle: excitement, expansion, excess, and reform. Stay ahead of the regulatory curve.
  • Expect More Oversight Ahead. The next decade will bring more attention to private markets, digital assets, and algorithmic advice. Regulation will continue to follow innovation, and disciplined investors will reap the benefits.
  • Work With a Fiduciary Who Understands the Rules Behind the Returns. At VIP Wealth Advisors, we don't just build portfolios. We build strategy through the lens of the laws that protect them, ensuring your plan remains compliant, tax-efficient, and aligned with your goals.

Closing Reflection

Nearly a century ago, the Great Depression taught America that markets cannot thrive without trust. The laws that followed, from the 1933 Securities Act to today's evolving SEC oversight, are not relics of history. They are the architecture of modern finance.

At VIP Wealth Advisors, we believe that the same principles - transparency, accountability, and fiduciary care - are not just legal standards; they're moral ones.

Because building true wealth isn't just about what you earn, it's about knowing the rules that keep it safe.

Q&A

+ Q1: What is the Securities Act of 1933, and why is it important?

The Securities Act of 1933, often called the "Truth in Securities" Act, requires companies to provide complete and fair disclosure before offering securities to the public. It's the foundation of investor protection, ensuring you can make informed decisions based on verified financial information.

+ Q2: What did the Securities Exchange Act of 1934 create?

The 1934 Act created the Securities and Exchange Commission (SEC), which enforces securities laws, regulates exchanges, and monitors market participants to prevent fraud and insider trading.

+ Q3: What is the Investment Advisers Act of 1940, and how does it protect investors?

This law established the fiduciary duty for investment advisers; a legal obligation to act solely in the client's best interest. It's the backbone of Registered Investment Adviser (RIA) ethics and the gold standard under which VIP Wealth Advisors operates.

+ Q4: How did Dodd–Frank change financial regulation after 2008?

The Dodd–Frank Act introduced systemic oversight for large financial institutions, tightened consumer protections, and increased transparency in the derivatives and hedge fund markets. It also created the CFPB to safeguard consumers from abusive financial practices.

+ Q5: What is Regulation Best Interest (Reg BI)?

Reg BI, implemented in 2019, requires broker-dealers to act in a client's "best interest" when making recommendations. However, it still allows certain conflicts of interest - unlike the fiduciary duty required under the 1940 Advisers Act.

+ Q6: How do modern SEC rules affect crypto and private investments?

The SEC now classifies many digital assets as securities, applying disclosure and custody rules similar to traditional markets. Recent private fund rules also expand audit and reporting obligations for hedge and private equity funds.

+ Q7: Why does fiduciary advice matter more than ever?

As investment products grow more complex, fiduciary advisors ensure that every recommendation, from asset allocation to tax strategy, serves your goals, not the firm's compensation structure.

+ Q8: What's the key takeaway for today's investors?

The market's rules have evolved for nearly a century, but the goal remains the same: protect investors and preserve trust. Knowledgeable investors choose fiduciary advisors who understand both the history and the future of those rules.

Want a plan that plays by the rules and wins?

Work with a flat-fee fiduciary who understands the laws behind the returns. We'll align your investments, taxes, and estate plan with the frameworks that protect them.

ABOUT THE AUTHOR

Mark Stancato, CFP®, EA, ECA, CRPS®

Mark Stancato, CFP®, EA, ECA, CRPS® has over 20 years of experience advising high-net-worth clients, including tech executives, real estate investors, and entertainment professionals. He specializes in tax strategy, equity compensation, and multi-stream income planning—offering white-glove guidance and highly personalized financial solutions.

Insights Via Email

VIP Financial Insights

Subscribe to our Financial Insights alerts and be notified by email as soon as new articles are published.